LENA-R8 series - System integration manual
UBX-22015376 - R02
Product testing
Page 109 of 116
C1-Public
5
Product testing
5.1
Validation testing and qualification
LENA-R8 series modules are validated and tested by u-blox in the operating conditions and in certain
integration scenarios, but not all the specific characteristics of the host application end-product
integrating the module can be validated and tested by u-blox.
LENA-R8 series modules are also qualified by u-blox according to u-blox policy, which is based on the
AEC-Q104 standard, but the specific characteristics of the host application end-product integrating
the module cannot be qualified by u-blox.
Therefore, and to be on the safe side, u-blox recommends that integrators of LENA-R8 series modules
validate, verify, qualify, and test the host product integrating the module. Take into consideration all
the possible aspects, to make sure that the specific characteristics of the host application do not lead
to reduced / non-performance of the LENA-R8 series modules.
Host product manufacturers are responsible to follow all the integration guidelines included in this
manual, and to perform a set of verification tests to ensure the host end-product complies with
applicable functional and/or conformity requirements.
Care must be taken in the validation of the antenna RF circuits implemented in the host product for
the module, as they may affect compliance with applicable RF conformity requirements.
The 50
characteristic impedance of the antenna trace design on a host printed circuit board can be
verified using a Vector Network Analyzer, as done on the u-blox host PCB, with a calibrated RF coaxial
cable soldered at the pad corresponding to RF input/output of the module and with the transmission
line terminated to a 50
load at the 50
SMA female connector.
Compliance of the design with RF regulatory rules defined by the FCC, ISED, RED, etc. can be verified
using a radio communication tester (callbox), as for example the Rohde & Schwarz CMW500, or any
equivalent equipment for multi-radio technology signaling conformance tests. Consider involving an
accredited testing laboratory to verify compliance with RF regulatory rules.
Care must be taken in the validation of the VCC power supply circuit implemented in the host product
for the module, as the specific characteristics of the power supply circuit may affect compliance with
applicable functional and/or conformity requirements.
Adequateness of the power supply circuit capability can be checked by forcing the module to transmit
at the maximum power level in the supported radio access technologies using a radio communication
tester (callbox) as the Rohde & Schwarz CMW500 or any equivalent equipment.
Care must be taken in the validation of the SIM interface circuit implemented in the host product for
the module. It is important to check the rise times of the signals, as the external circuit design may
affect compliance with applicable functional and/or specification requirements.
Care must be taken in the validation of any interface circuit connected to the module as implemented
in the host product. Check the power-on, power-off and reset circuits, also with any related switch-on,
switch-off, and reset procedures. Check the communication interfaces (as UARTs, USB, I2C), and any
other circuit designed in the host product in combination with any other interface of the module (as
audio, GPIOs, etc.), as the external design implemented in the host product may affect compliance
with applicable functional requirements.
☞
The validation, verification, qualification, and testing of the application host device integrating a
LENA-R8 series module and the compliance of the application host device with all the applicable
functional and/or conformity specifications and requirements are under the sole responsibility of
the application host device manufacturer.
